|
Stockholders' Equity and Share-based Compensation (Tables)
|
12 Months Ended |
|
Dec. 31, 2012
|
| Summarization of Changes in Restricted Stock Units |
The following table
summarizes the changes in RSUs:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
2012 |
|
|
2011 |
|
|
2010 |
|
| |
|
Number
of
Restricted
Stock
Units |
|
|
Weighted Average
Grant
Date Fair
Value |
|
|
Number
of
Restricted
Stock
Units |
|
|
Weighted Average
Grant
Date Fair
Value |
|
|
Number
of
Restricted
Stock
Units |
|
|
Weighted Average
Grant
Date Fair
Value |
|
|
Nonvested, beginning of
year
|
|
|
826,482 |
|
|
$ |
26.58 |
|
|
|
832,457 |
|
|
$ |
19.33 |
|
|
|
655,792 |
|
|
$ |
15.17 |
|
|
Granted
|
|
|
357,218 |
|
|
|
42.38 |
|
|
|
317,934 |
|
|
|
38.27 |
|
|
|
403,310 |
|
|
|
25.76 |
|
|
Forfeited
|
|
|
(71,425 |
) |
|
|
28.95 |
|
|
|
(74,143 |
) |
|
|
21.49 |
|
|
|
(43,536 |
) |
|
|
13.08 |
|
|
Vested
|
|
|
(290,716 |
) |
|
|
23.47 |
|
|
|
(249,766 |
) |
|
|
18.80 |
|
|
|
(183,109 |
) |
|
|
20.09 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Nonvested, end of
year
|
|
|
821,559 |
|
|
$ |
34.34 |
|
|
|
826,482 |
|
|
$ |
26.58 |
|
|
|
832,457 |
|
|
$ |
19.33 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Assumptions Used to Value Grants of Stock Appreciation Rights |
The following assumptions
were used to value grants of SARs:
|
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|
|
|
|
|
|
|
|
|
|
|
| |
|
Year Ended
December 31, |
|
| |
|
2012 |
|
|
2011 |
|
|
2010 |
|
|
Risk-free interest
rate
|
|
|
— |
|
|
|
— |
|
|
|
4.30 |
% |
|
Dividend yield
|
|
|
— |
|
|
|
— |
|
|
|
1.50 |
% |
|
Expected life of option (in
years)
|
|
|
— |
|
|
|
— |
|
|
|
4.8 |
|
|
Expected volatility
(calculated historically)
|
|
|
— |
|
|
|
— |
|
|
|
42 |
% |
|
Weighted-average fair value
of share-based compensation awards granted
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
11.05 |
|
|
| Summary of Stock Appreciation Rights |
The following table
summarizes the changes in SARs:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
2012 |
|
|
2011 |
|
|
2010 |
|
| |
|
Number
of
Stock
Appreciation
Rights |
|
|
Weighted
Average
Exercise
Price |
|
|
Number
of
Stock
Appreciation
Rights |
|
|
Weighted
Average
Exercise
Price |
|
|
Number
of
Stock
Appreciation
Rights |
|
|
Weighted
Average
Exercise
Price |
|
|
Outstanding, beginning of
year
|
|
|
1,118,258 |
|
|
$ |
62.81 |
|
|
|
1,289,073 |
|
|
$ |
63.08 |
|
|
|
1,351,698 |
|
|
$ |
64.51 |
|
|
Granted
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
60,000 |
|
|
|
30.01 |
|
|
Forfeited
|
|
|
(58,375 |
) |
|
|
63.58 |
|
|
|
(132,690 |
) |
|
|
71.76 |
|
|
|
(122,625 |
) |
|
|
62.64 |
|
|
Exercised
|
|
|
(78,750 |
) |
|
|
40.80 |
|
|
|
(38,125 |
) |
|
|
40.78 |
|
|
|
— |
|
|
|
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Outstanding, end of
year
|
|
|
981,133 |
|
|
$ |
64.53 |
|
|
|
1,118,258 |
|
|
$ |
62.81 |
|
|
|
1,289,073 |
|
|
$ |
63.08 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Vested or expected to vest,
end of year
|
|
|
976,933 |
|
|
$ |
64.68 |
|
|
|
1,085,878 |
|
|
$ |
63.62 |
|
|
|
1,136,816 |
|
|
$ |
64.71 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercisable, end of
year
|
|
|
951,133 |
|
|
$ |
65.62 |
|
|
|
958,951 |
|
|
$ |
66.92 |
|
|
|
860,271 |
|
|
$ |
70.73 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Summary of Characteristics of Stock Appreciation Rights |
The following table
summarizes the characteristics of SARs at December 31,
2012:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
Stock Appreciation Rights Outstanding |
|
|
Stock Appreciation Rights Exercisable |
|
|
Range of
Exercise
Prices
|
|
Shares |
|
|
Weighted
Average
Exercise
Price |
|
|
Weighted
Average
Remaining
Contractual
Life-Years |
|
|
Shares |
|
|
Weighted
Average
Exercise
Price |
|
|
Weighted
Average
Remaining
Contractual
Life-Years |
|
|
$30.01 –
$45.74
|
|
|
417,880 |
|
|
$ |
39.66 |
|
|
|
2.56 |
|
|
|
387,880 |
|
|
$ |
40.40 |
|
|
|
2.39 |
|
|
66.60 –
76.00
|
|
|
342,243 |
|
|
|
73.57 |
|
|
|
1.32 |
|
|
|
342,243 |
|
|
|
73.57 |
|
|
|
1.32 |
|
|
97.56 –
97.56
|
|
|
221,010 |
|
|
|
97.56 |
|
|
|
0.20 |
|
|
|
221,010 |
|
|
|
97.56 |
|
|
|
0.20 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$30.01 –
$97.56
|
|
|
981,133 |
|
|
$ |
64.53 |
|
|
|
1.60 |
|
|
|
951,133 |
|
|
$ |
65.62 |
|
|
|
1.50 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Summary of Changes in Stock Options |
The following table
summarizes the changes in stock options:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
2012 |
|
|
2011 |
|
|
2010 |
|
| |
|
Number
of Options |
|
|
Weighted
Average
Exercise
Price |
|
|
Number
of
Options |
|
|
Weighted
Average
Exercise
Price |
|
|
Number
of
Options |
|
|
Weighted
Average
Exercise
Price |
|
|
Outstanding, beginning of
year
|
|
|
672,865 |
|
|
$ |
58.79 |
|
|
|
1,122,865 |
|
|
$ |
53.44 |
|
|
|
1,202,717 |
|
|
$ |
53.03 |
|
|
Granted
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
Forfeited
|
|
|
(475,875 |
) |
|
|
66.97 |
|
|
|
(381,625 |
) |
|
|
47.82 |
|
|
|
(56,002 |
) |
|
|
55.83 |
|
|
Exercised
|
|
|
(43,845 |
) |
|
|
32.46 |
|
|
|
(68,375 |
) |
|
|
32.16 |
|
|
|
(23,850 |
) |
|
|
27.37 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Outstanding, end of
year
|
|
|
153,145 |
|
|
$ |
40.91 |
|
|
|
672,865 |
|
|
$ |
58.79 |
|
|
|
1,122,865 |
|
|
$ |
53.44 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Vested or expected to vest,
end of year
|
|
|
153,145 |
|
|
$ |
40.91 |
|
|
|
672,865 |
|
|
$ |
58.79 |
|
|
|
1,122,865 |
|
|
$ |
53.44 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercisable, end of
year
|
|
|
153,145 |
|
|
$ |
40.91 |
|
|
|
672,865 |
|
|
$ |
58.79 |
|
|
|
1,122,865 |
|
|
$ |
53.44 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Summary of Characteristics of Options |
The following table
summarizes the characteristics of stock options at
December 31, 2012:
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
Options Outstanding and
Exercisable |
|
|
Range of
Exercise
Prices
|
|
Shares |
|
|
Weighted
Average
Exercise
Price |
|
|
Weighted
Average
Remaining
Contractual
Life-Years |
|
|
$32.30 –
$32.30
|
|
|
80,905 |
|
|
$ |
32.30 |
|
|
|
0.19 |
|
|
50.55 –
50.55
|
|
|
72,240 |
|
|
|
50.55 |
|
|
|
0.83 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$32.30 –
$50.55
|
|
|
153,145 |
|
|
$ |
40.91 |
|
|
|
0.49 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|